JPH0533211A - Colored composition for dope dyeing of fiber - Google Patents

Abstract

PURPOSE:To obtain a brown colored material for dope dyeing of fiber having high concentration, capable of giving a synthetic fiber such as polyester, nylon or polyolefin shielding ultraviolet ray region and having good dispersibility of pigment. CONSTITUTION:A colored composition for dope dyeing of fiber characterized by dispersing transparent and globular iron (III) oxide having 0.03-0.09mum average particle diameter into a coloring carrier.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to an undiluted colorant for synthetic fibers. More specifically, it relates to a high-concentration colorant for melt spinning such as polyester, nylon and polyolefin, and for wet spinning such as acrylic and polyvinyl alcohol.

[0002]

BACKGROUND ART Synthetic fibers typified by polyester, nylon, and acrylic have excellent heat resistance, weather resistance, texture, and bulkiness. Therefore, they are suitable for clothing such as suits, blouses, socks, automobile mats, and tire cords. It is used in a wide range of fields including industrial materials such as fishnets, interior materials such as curtains, rugs, and non-woven fabrics. Among these applications, the effects of blocking UV rays, such as the effects of blocking UV rays, such as women's blouses and pantyhose, and the effects of blocking resin deterioration by blocking UV rays, such as automobiles, fishnets and parasols, are not It is diverse. Heretofore, in order to shield ultraviolet rays, a method of blocking with titanium oxide or carbon black and a method of blocking light with adding a large amount of a colored pigment have been used.
Further, in the case of a fiber that requires a transparent color or a light color, a post-processing method using an anti-ultraviolet agent or the like is used, resulting in a significant increase in cost.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a high-concentration colorant which, when spinning various synthetic fibers, produces various fibers having a large transparency and shielding ultraviolet rays having a wavelength of 320 nm or less.

[0004]

That is, the present invention is characterized by the fact that transparent spherical ferric oxide having an average particle diameter of 0.03 to 0.09 μm is dispersed in a colorant carrier to color a fiber base material. It relates to a composition.

The transparent spherical ferric oxide of the present invention can be obtained, for example, by the method disclosed in Japanese Patent Application Laid-Open No. 2-171925. The shape of the transparent spherical iron oxide is such that the ratio of major and minor diameters of the particles is 0.7 or more, and the average particle size is 0.03 to.
It is 0.09 μm. Pigment dispersants that can be used as the colorant carrier of the present invention include ethylenebisstearic acid amide, copolymerized polyester resins, polyethylene / polypropylene waxes, metal soaps, liquid polyester plasticizers (JP-A-60-45689). ), Liquid polyester polyols (see JP-A-2-175918), epoxidized soybean oil, nonionic surfactants, and the like.

A pigment or dye may be used in combination with the colorant composition of the present invention. Examples of such pigments or dyes include anthraquinone-based, perylene-based, perinone-based, quinacridone-based, phthalocyanine-based organic pigments, titanium oxide,
Ultramarine blue, carbon black, colored inorganic pigments such as titanium yellow,
Extender pigments such as barium sulfate, kaolin and talc, oil-soluble dyes such as anthraquinone type, perylene type and perinone type,
Disperse dyes can be used. Especially C.I. I. Pigment Yellow 151 and transparent titanium oxide are preferably used for enhancing the ultraviolet shielding effect. The colorant of the present invention may be added with an antioxidant, an anti-UV agent, a viscosity reducing agent, a stabilizer and the like.

Regarding the shape of the colorant of the present invention, the melt-spun product can be provided as a solid or liquid colorant called a masterbatch, and the wet-spun product can be provided as a liquid colorant. To obtain the masterbatch of the present invention, the melt spinning resin 100 is used.
2 to 70 parts by weight of spherical ferric oxide, 1.5 to 70 parts by weight of a dispersant and 0 to 2 parts by weight of an additive are blended with respect to parts by weight, and the mixture is extruded with a single screw extruder or a twin screw extruder, Obtained by water cooling and pelletization. Compounds other than the resin may be mixed, dispersed and pulverized in advance with a Henschel mixer, a pressure kneader or a three-roll mill.

To obtain the liquid colorant of the present invention, 100 to 90 parts by weight of spherical ferric oxide is used to disperse 100 to 90 parts of the dispersion vehicle.
0 parts by weight and 0 to 200 parts by weight of additives are blended, and a mixer such as a homomixer or a disper mill is used, and then a general kneader such as a 3-roll mill or a sand mill is used.

The colorant of the present invention is used for melt-spun fibers of polyester, nylon, polyethylene and polypropylene,
Further, it can be used as a colorant for wet spun fibers of polyacrylonitrile (acrylic) and polyvinyl alcohol (vinylon).

The amount of the colorant added is 0.05 to 10% by weight, preferably 0.1 to 5% by weight, in terms of spherical ferric oxide. Hereinafter, description will be made with reference to examples. All parts and% in the examples are based on weight.

[0011]

Example 1 50 parts of spherical transparent ferric oxide nanotite (trade name, manufactured by Showa Denko KK) having an average particle size of 0.06 μm and sun wax 131P (manufactured by Sanyo Chemical Industries, Ltd.) 49.
After mixing 9 parts and 0.1 part of the antioxidant ADEKA STAB AO-50 (manufactured by Asahi Denka Co., Ltd.) with a pressure kneader, the mixture was passed through 2 passes with 3 rolls having a surface temperature of 115 ° C., and a masterbatch intermediate was obtained by pulverization. Got 6 Nylon Resin Novamid 1020
After mixing 25 parts of the above masterbatch intermediate with 100 parts (manufactured by Mitsubishi Kasei Co., Ltd.) with a Henschel mixer, it is extruded at 265 ° C. in a single-screw extruder to form a strand,
A masterbatch for nylon was obtained by cooling, pelletizing and classification. After mixing 100 parts of Novamid 1020 and 5 parts of the above masterbatch, it was dried at 10 torr and 60 ° C. for 12 hours, and then, using a vertical test spinning machine (Fuji Filter Spinning Tester), 265 ° C. under the hopper, kneading section, die. Part was spun at 255 ° C. and then stretched 4 times to obtain a nylon fiber of 5 denier. The spinnability, the clogging property, and the stretchability exhibited good dispersibility without problems. Table 1 shows the dispersibility, colorimetric value, and ultraviolet ray blocking ratio.

[0012]

[Table 1]

The notes in the table are as follows. Note 1: Indicates the weight percentage in the yarn. Note 2: Indication method by "KURABO Aucolor 10 series" manufactured by Kurashiki Spinning Co., Ltd. CIE-1970, D light source, value when 1 g of fiber is filled is shown. Note 3: The value obtained by forming the unstretched fiber into a film by pressing and measuring the thickness with a caliper is shown in mm. Note 4: Shimadzu UV-265FW was used. Note 5: Coarse particles in a certain share were counted by a microscopic method and judged according to the following criteria. ⊚: 2 to 5 coarse particles of 5 to 10 μm, other than 5 μm
The following particles: 7: 5 or less coarse particles of 7 to 15 μm, other than 7 μm
The following particles x: There are coarse particles of 20 μm or more, and other than that, 10 to 15 μm
Many particles of about m are seen

[0014]

Example 2 40 parts of nanotight used in Example 1,
40 parts of copolymerized polyerter resin ER-3700 (manufactured by Nippon Ester Co., Ltd.), 10 parts of ethylenebisstearic acid amide, Alflo H50T (manufactured by NOF CORPORATION) and 10 parts of magnesium stearate NP-1500 (manufactured by Tannan Chemical Co., Ltd.). Was mixed with a pressure kneader, then crushed for 2 passes with 3 rolls having a surface temperature of 115 ° C. to obtain an intermediate. 65 mm after mixing 60 parts of polyester resin Unipet RT-543 (manufactured by Nippon Unipet Co., limiting viscosity 0.72) and 40 parts of the above intermediate with a Henschel mixer.
A twin-screw extruder was extruded at 290 ° C., and a master batch for polyester was obtained by stranding, cooling, pelletizing, and classification. Unipet RT-54380 parts and the above-mentioned master bees 20 parts are dried at 160 ° C. for 5 hours, and the vertical test spinning machine (Fuji Filter Spinning Tester) is operated at 290 ° C. under the hopper, and the kneading and die temperatures are 280 ° C. Was drawn at 4 times, and 3 denier polyester fiber was obtained. The spinnability, the clogging property, and the stretchability exhibited good dispersibility without problems. Table 1 shows the dispersibility, colorimetric value, and ultraviolet ray blocking ratio.

[0015]

Example 3 40 parts of nanotight used in Example 1 and 60 parts of polyoxyethylene / polyoxypropylene block polymer, Pluronic L-64 (Made by Asahi Denka Co., Ltd., molecular weight = 2000) were mixed with a Dispermill and stirred. After that, kneading with 3 rolls and 2 passes, 125 poise (25
A liquid colored product (° C.) Was obtained. To 99.5 parts of an acrylonitrile-based polymer solution (solid content 20%, DMF solvent 80%), 0.5 parts of the above liquid colorant (pigment content of about 1%) was added and melted by a volumetric quantitative feeder. Spinning was performed in a wet spinning machine and drawn in two stages to obtain an acrylic fiber having a denier of 1.5. The obtained fiber had good levelness, sharpness, and color development.
Table 1 shows the dispersibility, colorimetric value, and ultraviolet ray blocking ratio.

[0016]

Comparative Example 1 A masterbatch intermediate was obtained in the same manner as in Example 2 except that 40 parts of transiron oxide (transparent red iron oxide trade name manufactured by Hilton Davis) was used instead of the spherical transparent iron oxide used in Example 2. It was An attempt was made to produce a masterbatch using 40 parts of this masterbatch intermediate in the same manner as in Example 2, but the 120 mesh filter before the die was severely clogged, and a masterbatch could not be obtained.

[0017]

Comparative Example 2 The same procedure as in Example 2 was performed using 50 parts of Sicotrans Red K2819NK (trade name of BASF, 50% magnesium stearate treated product) in place of the spherical transparent iron oxide used in Example 2. A batch intermediate was obtained. 40 parts of this masterbatch intermediate and Unipet RT
After mixing -54360 parts with a Henschel mixer, 65
mm Extruded at 290 ° C., but resin deterioration was severe and strands were not formed, and a master batch could not be obtained. It is considered that this is because the metal soap used for the dispersion treatment deteriorated the polyester resin.

[0018]

Comparative Example 3 A liquid colored product of 95 poise (25 ° C.) was obtained in the same manner as in Example 3 except that 40 parts of the trans iron oxide used in Comparative Example 1 was used. Using this liquid colorant, melt spinning and two-stage drawing were carried out in the same manner as in Example 3,
The color developability was remarkably inferior as indicated by the colorimetric value. A large number of coarse pigment particles were precipitated at the bottom of the dope mixing tank. Table 1 shows the dispersibility, colorimetric value, and ultraviolet ray blocking ratio.

[0019]

By using spherical ferric oxide,
The cohesive force between the particles is weakened, the dispersibility is improved, fibers having a fineness of 1 denier or more can be easily obtained, and the content of the pigment in the fibers of 0.05% shows an effect of shielding ultraviolet rays.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location D01F 6/90 301 7199-3B 6/92 303 B 7199-3B

Claims (1)

Claim: What is claimed is: 1. A colored composition for use on a fiber base, comprising a transparent spherical ferric oxide having an average particle size of 0.03 to 0.09 μm dispersed in a colorant carrier.